本田第四代混合动力系统（IMA）研究

基于轻度混联混合动力系统的特点，本田在前代混合动力系统的基础上研发了第四代混合动力系统IMA。论文对应用在civic2006上的第四代IMA系统的结构，原理和特点进行了研究，同时与前代系统进行了比较分析。     

车用混合动力系统技术发展分析

介绍了车用混合动力系统的几种结构型式和基本原理；着重分析了柴油机等往复式内燃机与电动机构成的混合动力系统的工作过程、技术关键及应用问题，在此基础上提出了我国开发混合动力系统的一些思考。     

燃料电池汽车混合动力系统构型研究

概述了氢燃料电池汽车的基本动力系统结构，分析了不同结构型式的燃料电池混合动力系统的优缺点和性能差异，讨论了燃料电池混合动力系统的选型与设计过程中涉及到的一些关键技术要点，最后给出试验结果并针对燃料电池混合动力系统的开发提出了一些有指导意义的建议。     

大功率混合动力大客车的探讨

阐述了混合动力系统几种典型的布置方案及特点，介绍了日本日野汽车公司所开发的带有HIMR系统的混合动力大客车的动力系统组成和工作过程。     

多姿多彩的混合动力车世界

混合动力车已不再是“过渡技术”，世界各汽车制造商都在开发混合动力车。本文介绍了丰田的混合动力系统和通用双模式混合动力系统及各汽车制造商正在研发的混合动力系统概况。     

混合动力轿车多能源动力总成控制系统研制与开发

介绍某型混合动力轿车多能源动力总成控制系统的设计思想和关键技术,着重阐述混合动力系统功能设计、控制逻辑和策略、系统硬软件设计以及动力系统台架联合调试的情况。研究轻度并联混合动力系统的控制策略、CAN通信、测试和试验等技术和方法,通过提高系统的控制功能和性能,最终达到改善混合动力汽车的动力性、经济性及排放等目的。     

2021款路虎发现运动插电式混合动力系统技术亮点(一)

1.PTA平台与规格参数概述2021款路虎新极光/发现运动采用同一平台,即高级横置架构(PTA)平台,引入Mild Hybrid Electric Vehicle(轻度混合动力系统MHEV)和PHEV(插电式混合动力系统)技术。本刊已介绍过2019-2020款路虎极光MHEV技术。     

前向式混合动力系统模型中控制器建模与仿真

在Matlab／Simulik和Matlab／Stateflow平台上建立了某一混合动力汽车的前向式仿真模型及控制器模型．研究了基于PID控制和模糊逻辑控制的两种驾驶员模型，通过仿真过程对该前向式混合动力系统控制器模型进行了验证，并对两种驾驶员模型控制器的控制效果进行了比较。     

混合动力汽车动力系统布置方案分析

介绍混合动力系统的分类和功能,分析混合动力系统的布置方案,为混合动力汽车动力系统的设计提供参考。     

12V混合动力电动增压系统

现代汽车欧洲技术中心与集成动力传动技术公司已合作开发出了1款用于轿车的新型驱动方案,由1台4缸1.7L柴油机与1套名为"Supergen"的12V轻度混合动力系统组成。后者将1台混合动力电机与1个电动压气机组合布置于紧凑的壳体中。这种新型的12V电压技术是借助于发动机低速化而能显著降低CO2排放的低成本方法。与采用电动压气机的48V轻度混合动力系统相比,其在相同的行驶功率情况下具有系统总成本更低的优势。     

ISA型混合动力汽车的控制策略及性能仿真

在介绍了ISA(IntegratedStarterAlternator)轻度混合动力汽车结构及主要特点的基础上,着重分析了发动机和电机之间的能量匹配以及控制策略。通过实例,利用ADVISOR软件对传统车辆和改装后ISA型混合动力汽车进行仿真分析,结果显示:其燃油经济性和动力性得到大幅提高,污染排放得到有效提高,为该混合动车具体设计提供了理论依据。     

一体式起动发电机系统概述

随着车用电器功率的不断增长,一体式起动发电机(ISA)系统被开发以满足电能需求。该系统的五项主要功能可分别改善经济性、舒适性等整车性能,但各功能的应用对储能系统分别提出了一定要求。现有的各种储能技术都不能全面满足ISA系统的能量要求,必须开发新的储能技术或系统。ISA系统的使用结果表明,该系统可显著提高燃油经济性及低速时的驾驶舒适性。     

Evaluating the effectiveness of a smartphone speed limit advisory application: An on-road study in Port-Harcourt,Nigeria

The development of mobile phone applications that provide speed limit advice and warnings offers opportunities for use of the technology in the improvement of driver safety. This paper looks at the effect of an advisory Intelligent Speed Assistance (ISA) application on driver speeding behaviour. Twenty participants (all males within the age range of 35–60 years) completed a within-group experimental design. Participants drove in real traffic on a 46 km test route which incorporated three-speed limits zones (50 km/h, 60 km/h, and 80 km/h speed limits) and aggregated into 10 different segments. Compared with baseline levels, possible impacts of ISA system functionalities on driver behaviour were studied through appropriate metrics including cumulative speed distribution, mean speed, speed deviation, 85th percentile speed, percentage distanced travelled above the speed limit, and safety benefit estimation. Results indicated the use of the ISA application led to significant improvement in speed limit compliance particularly in the 60 km/h and 80 km/h zones where speeding was eliminated. There were no observed negative effects on driver speeding behaviour from the use of the system. In general, the findings suggest the use of the ISA system, resulted in the adoption of vehicle speeds that are likely to improve road safety.     

Intelligent speed adaptation: Preliminary results of on-road study in Penang,Malaysia

The first field experiment with intelligent speed adaptation (ISA) in Malaysia was held in December 2010 in the State of Penang. Eleven private cars were instrumented with an advisory system. The system used in the present study included a vocal warning message and a visual text message that is activated when the driver attempts to exceed the speed limit. When the driver decreases the speed, the warning stops; otherwise it is continuously repeated. The test drivers drove the vehicles for three months with the installed system, and the speed was continuously logged in all vehicles. The warning was however only activated in the second month of the three month period. The present study aimed to evaluate the effects of an advisory ISA on driving speed, traffic safety, and drivers' attitude, behavior, and acceptance of the system. To examine these effects, both the survey and the logged speed data were analyzed and explored. The results show a significant reduction in the mean, maximum and 85th percentile speed due to the use of the system. However, there was no long-lasting effect on the speed when the system was deactivated. In the post-trial survey, drivers declared that the system helped them well in following the speed limits and that it assisted them in driving more comfortably. Furthermore, the warning method was more accepted compared to a supportive system, such as active accelerator pedal (AAP). After the trial, most drivers were willing to keep an ISA system.     

不同混合动力电动轿车方案的比较与分析

设计了同在离合器前与发动机的动力耦合的ISA并联、电机在离合器后变速器前与发动机的动力耦合的一般并联、类似于Prius的混联三种HEV方案。对这三种方案和原轿车的最高车速、原地起步加速特性等动力性指标和基于ECE＋EUDC的100km油耗和续驶里程等能量经济性指标及排施行性进行了仿真和分析。得到相应结论。     

TTCAN调度算法及其在汽车控制系统中的应用

TTCAN协议是一种新的基于时间触发机制的CAN高层协议。针对周期性信号的特点,提出了基于平均数目分析的静态调度算法;针对非周期信号的随机性,为了避免信号的死锁提出了基于信号截止期的优先级提升动态调度算法。最后以汽车自动控制系统为背景进行了调度分析,与IEC／ISA相比既满足了信号的实时传输,又提高了网络资源的利用率。     

International and intercultural differences in arguments used against road safety policy measures

Policy measures in the field of road safety are not easily implemented for several reasons. Interventions can be undertaken in a multitude of policy areas, but it is often uncertain how effective the measures are. Moreover, policymakers may be reluctant to implement road safety policy measures because of the expected high costs and/or perceived low public support. To understand the arguments used against policy measures for road safety, a survey was conducted in ten countries (China, the United States, the United Kingdom, Belgium, Austria, Sweden, Greece, France, Nigeria, and Argentina). Respondents were presented with ten possible road safety measures and asked whether they would support or oppose them, what arguments their opinion was based on, and what the consequence of the measure would be on them individually. This paper describes the main findings of the research and then zooms in on three counterarguments: restriction of mobility, discrimination, and unjustifiability of state interventions, as well as on three of the measures considered—compulsory use of ISA systems, mandatory cycle helmets, and screening of older motorists. With this research, previous results on the level of public support have been confirmed, and new insights have been gained. If people feel safe when using a particular transport mode, they are less conscious of the need for additional or stricter measures affecting their transport mode. The perceived restriction of human liberties, fear of discrimination, and resistance to state interventions fuel opposition against measures. Moreover, people from different countries vary in what they consider fair and unfair, which is linked to the national culture and social organization. Even if a measure was perceived to be unfair from a certain perspective (e.g., discrimination), some respondents supported the measure. Our research also illustrates that even people who recognize that a measure would be effective might oppose it because they think it is not justified from at least one perspective, for instance, an excessive restriction of freedom.     

基于转向特性的汽车电子控制动力转向系统

电子控制动力转向系统（EPS）可以在低速时减轻转向力,以提高转向系统的操纵稳定性;在高速时则可适当加重转向力,以提高操纵稳定性.文章介绍了EPS及其主要形式和布置方式,在分析汽车助力转向系统工作原理的基础上,阐述了转向特性对汽车操纵性能的影响,并结合具体EPS实例,介绍了电子控制动力转向系统的4种控制形式,为动力转向系统软件开发及实物研制提供了前提条件.     

基于自卸车整车模型中的举升机构动态仿真分析

在ADAMS中建立了基于整车的举升机构动态仿真模型，在考虑前后悬架刚度和阻尼以及整车质量参数的情况下研究了在举升过程中车辆自激振动时油缸推力的变化规律．为举升机构的动态设计提供了参考。     

基于BP神经网络的桥梁技术状态评估

用养护规范中17个评价指标作为输入层网络神经元,把桥梁损伤等级参数作为输出层神经元,建立了桥梁评估3层BP神经网络模型.选用湖北省110座旧桥的评估数据作为训练样本,后10个作为测试样本,经过2 068次迭代运算的网络训练,得到了误差满足精度要求的收敛网络.将待评估的桥梁参数输入训练好的网络,得到评估桥梁的技术状态等级...